In FAST for SharePoint 2010 I think there was a feature known as stemming, where, if you provided a query like "car," the system would implicitly also search for "cars." I have not been able to get SharePoint 2013 Enterprise search to behave in this way. If I search for a particular form, it seems to only search for that form and not pluralization.
I know that there is also a wildcard search, so I can search for "car*" and get results for "car" and "cars." But this is not ideal because I don't want unrelated results like "card," "cards," and "carbohydrates."
The REST interface seems to have a property called
https://msdn.microsoft.com/en-us/library/office/jj163876.aspx), but in my experimentation it has no effect on the type or quantity of results returned.
Has anyone gotten stemming to work, or are wildcards intended to be the replacement for stemming in 2013?
Update: I have done some more work with this portal, and I found that stemming clearly is available and does work. For example, if I searched for "test," SharePoint would find results matching "tests," and the hithighlighting would indicate that it was indeed matching on the plural form. I think my problem had to do with the fact that I was running my REST queries anonymously. I have so far been unable to get any stemmed results in that scenario, but I was able to work around the problem by enabling authentication for my REST queries.